EP3417688B1 - Machine d'épandage pneumatique agricole - Google Patents

Machine d'épandage pneumatique agricole Download PDF

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Publication number
EP3417688B1
EP3417688B1 EP18401047.8A EP18401047A EP3417688B1 EP 3417688 B1 EP3417688 B1 EP 3417688B1 EP 18401047 A EP18401047 A EP 18401047A EP 3417688 B1 EP3417688 B1 EP 3417688B1
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EP
European Patent Office
Prior art keywords
return
line
distribution machine
return path
delivery
Prior art date
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Active
Application number
EP18401047.8A
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German (de)
English (en)
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EP3417688A1 (fr
Inventor
Klaus Brüggemann
Jan Flucke
Jan Bodo Ahrens
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Amazonen Werke H Dreyer SE and Co KG
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Amazonen Werke H Dreyer SE and Co KG
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Publication of EP3417688A1 publication Critical patent/EP3417688A1/fr
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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C7/00—Sowing
    • A01C7/08—Broadcast seeders; Seeders depositing seeds in rows
    • A01C7/081—Seeders depositing seeds in rows using pneumatic means
    • A01C7/084—Pneumatic distribution heads for seeders
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C7/00—Sowing
    • A01C7/08—Broadcast seeders; Seeders depositing seeds in rows
    • A01C7/088—Sectional seeding

Definitions

  • the invention relates to an agricultural pneumatic distribution machine according to the preamble of claim 1.
  • the distribution characteristic is adapted, for example, by means of a segment or single-row shutdown, in which individual seed elements are temporarily not supplied with seed and / or fertilizer.
  • the spreading elements can be configured, for example, as coulters or fertilizer coulters.
  • the distribution of the seed and / or fertilizer on the individual spreading elements is usually carried out by means of a distributor head which is connected to a metering element via a delivery line.
  • the distributor head also has a plurality of outlet openings, each of which is connected to a discharge element via a discharge line.
  • the feedback devices have a switch with a switching element, the switching element can be moved between a deployment position and a return position and in the return position of the switching element, the switch feeds an air-material mixture to a return path of the respective return device, which is connected to the delivery line and has a branch at which the return path is connected via a bypass line to a discharge path connected to a discharge line.
  • the object of the invention is therefore to prevent the unintentional spreading of seeds and / or fertilizer during the Reduce segment or single-row shutdown in pneumatic distribution machines.
  • the bypass line being designed such that material which has entered the bypass line via the return path is at least partially fed back to the return path, the bypass line having a material deflection section , which is set up to divert material that has reached the bypass line via the return path in the direction of the return path.
  • the invention makes use of the knowledge that the suction of material into the bypass line cannot be prevented without further ado, so that in order to reduce the unintended application of seed and / or fertilizer, it is necessary to return material that has entered the bypass line.
  • the bypass line has a material deflection section which is set up to deflect material that has entered the bypass line via the return path in the direction of the return path.
  • the material deflection section impacts the material deflection section and is deflected by the curvature of the material deflection section. Furthermore, some of the air that has entered the bypass line is diverted at the material deflection section and thus supports the deflection of the material in the direction of the return path.
  • the material deflection section preferably has a bend or curvature which wipes out kinetic energy of the material due to friction.
  • the material deflection section is preferably set up to deflect the material that has reached the bypass line via the return path from 150 to 210 °, preferably about 180 °.
  • the return of material that has entered the bypass line into the return path is preferably carried out in that material that has entered the bypass line is separated from the air stream flowing into the bypass line by a deflection before the material separated from the air stream returns the respective return path is routed.
  • the changeover element is in the dispensing position, the air-material mixture flowing into the respective return device is preferably fed directly to a discharge path of the return device, the air-material mixture being conveyed from the discharge path of the return device via a discharge line to a discharge element.
  • Each discharge opening of the distributor head is thus pneumatically connected to at least one discharge element via a discharge line.
  • the distributor head is preferably designed to be radially symmetrical.
  • the distribution machine preferably comprises at least one storage container for storing the at least one material to be distributed, the dispensing element being assigned to the storage container, which feeds the material to be distributed in adjustable amounts into the pneumatically actuated conveying line, in which the material to be distributed as air-material Mixture is promoted.
  • the outlet openings along the circumference of the distributor head are preferred evenly spaced apart.
  • the respective switches are preferably arranged adjacent to the assigned exit opening.
  • a guide element is arranged within the bypass line, which is designed to influence the flow within the bypass line.
  • the guide element is preferably elongated and / or as a web.
  • the guide element is preferably arranged within the bypass line in such a way that the air-material mixture flowing into the bypass line flows on one side of the guide element and the material that has entered the bypass line via the return path on the other side of the guide element flows back into the return path.
  • the air-material mixture on one side of the guide element preferably has an opposite flow direction to the material flowing on the other side of the guide element.
  • the guide element divides an area of the bypass line into an inflow section, into which the air-material mixture flows from the return path and an outflow section, from which an air-material mixture flows back into the return path.
  • the bypass line preferably has one or more deflection sections which block the direct flow path between the branch of the return device and the discharge path of the return device or a discharge line connected to the return device, so that the air-material mixture entering the bypass line inevitably enters or has to be deflected several times before at least parts of the inflow air-material mixture reach the discharge path of the return device or the discharge line.
  • the air-material mixture flowing back into the return path preferably has a lower air fraction than the air-material mixture flowing into the bypass line.
  • the bypass line has an air deflection section which is set up to redirect air which has reached the bypass line via the return path in the direction of the discharge path.
  • the air deflection section is preferably arranged behind the material deflection section in the flow direction of the air-material mixture.
  • the air deflection section is preferably set up to deflect air that has entered the bypass line via the return path in a first direction.
  • the material deflection section is preferably set up to deflect material that has reached the bypass line via the return path in a second direction.
  • the first direction and the second direction preferably differ, the first direction and the second direction preferably leading in opposite directions.
  • the distribution machine there is a flow separation edge at the air deflection section, at which the air is guided into the discharge path due to a lower counterpressure.
  • the fact that the pressure inside the discharge path is lower than the pressure inside the bypass line in the region of the flow separation edge results a suction effect, which promotes the air in the direction of the discharge path.
  • the air is fed from the discharge path to the corresponding discharge element via a discharge line.
  • a distribution machine is preferred, in which the return path has a nozzle-like constriction and the branch of the return path in the conveying direction is preferably arranged directly in front of the nozzle-like constriction.
  • the nozzle-like constriction preferably prevents much of the material from entering the bypass line.
  • the branch of the return path is arranged in the conveying direction immediately before the nozzle-like constriction, the nozzle-like constriction conveys material from the outflow section of the bypass line into the return path.
  • an end region of the delivery line opens into the distributor head and / or the delivery line has a nozzle-like constriction in an end region.
  • the delivery line and its end region preferably run at least approximately vertically.
  • the nozzle-like constriction of the delivery line is preferably designed to prevent the material to be distributed flowing through the delivery line from entering the return lines connected to the delivery line.
  • each return path is connected to the delivery line via a return line. If each return path is connected to the delivery line via a return line, the material that has entered the bypass line via the return path and is returned to the return path is fed back into the delivery line via a return line.
  • a distribution machine in which a plurality of return lines each open into a collecting element and the collecting elements are connected to the delivery line.
  • a plurality of return lines each open into a collecting element and the collecting elements are connected to the delivery line.
  • two, three, four or five adjacent return lines or half, a quarter, an eighth or a sixteenth of the total return lines each lead to a collecting element.
  • the collecting elements are preferably connected to the delivery line by means of collecting lines.
  • the nozzle-like constriction of the delivery line is preferably set up to prevent the material to be distributed flowing through the delivery line from entering the collecting lines connected to the delivery line.
  • the return lines or collecting lines open into the delivery line above the nozzle-like constriction.
  • the return lines or collecting lines preferably open into the delivery line in the conveying direction immediately behind the nozzle-like constriction.
  • the nozzle-like constriction of the delivery line is set up to return material from the return lines or collecting lines into the delivery line by means of a suction effect.
  • the nozzle-like constriction of the delivery line is preferably designed to prevent the material to be distributed flowing through the delivery line from entering the return lines or collecting lines connected to the delivery line. This is achieved in that the nozzle-like constriction of the delivery line exerts a suction effect, the suction effect guiding the material to be distributed past the openings to the return lines in the direction of the distributor head.
  • the wall of the conveying line is wave-shaped at least in sections.
  • the wave-like walling of the delivery line prevents the material from sticking to the wall.
  • the wave-shaped configuration of the wall of the delivery line forms a suitable flow within the delivery line.
  • a distribution machine which has a control system.
  • the control system has a memory unit, a detection device and / or an evaluation unit, the evaluation unit being determined on the basis of application parameters stored in the memory unit and / or recorded by the detection device and actuation means which can be controlled individually by the control system based on the application parameters spend their application position and their return position.
  • the control system is preferably set up to control the metering element based on the advance speed of the distributing machine, a conveying time of the material to be distributed from the metering element to the distributing head and a conveying time of the material to be distributed from the distributing head to the dispensing elements in such a way that at any time the currently necessary is preceded Total amount of material to be dispensed is at the distributor head.
  • the switching element can preferably be moved between the application position which releases the application line and the return position blocking the application line on the basis of the determined application parameters by means of an actuating element which can be actuated by the control system, preferably in an automated manner.
  • the actuating element preferably comprises a bistable rotary magnet.
  • the actuation of a switching element by means of a bistable rotary magnet allows extremely short switching times to be realized, so that the application lines can be blocked or released with a high degree of temporal precision.
  • the switching element is preferably formed from a metal or a metal alloy and articulated in such a way that the switching element can be brought into at least two rotational angle positions by actuating the actuating element. In a first angle of rotation position, the switching element blocks the discharge line. In a second angle of rotation position, the switching element releases the application line and preferably also blocks the return path at the same time.
  • the Fig. 1 shows an agricultural pneumatic spreading machine 10 designed as a pneumatic seed drill for distributing granular material, namely seed.
  • the distribution machine 10 comprises a frame structure 12, on which a storage container 14 is arranged.
  • the storage container 14 is set up to store the granular material to be distributed.
  • the storage container 14 is connected to a delivery line 20 via a metering element 16, the metered granular material being transported to the delivery line 20 by means of a delivery blower 18.
  • the metering device 16 is set up to feed the material to be distributed in adjustable amounts into the pneumatically actuated delivery line 20, the material to be distributed being conveyed in the delivery line 20 as an air-material mixture.
  • the conveying fan 18 is driven, for example, by a hydraulic motor and causes sufficient pressure to convey the granular material to be distributed through the conveying line 20 to a distributor head 22.
  • the distributor head 22 has a plurality of outlet openings.
  • the outlet openings are evenly distributed along the circumference of the distributor head 22, so that adjacent outlet openings are each arranged equidistantly from one another.
  • Each outlet opening is pneumatically connected via a return device and a discharge line (hidden) connected to the return device to a discharge element 24 designed as a coulter.
  • the spreading elements 24 are fastened to a support frame 26 and each set up to deposit the granular material to be distributed in a furrow of the arable soil.
  • a roller 28 In the direction of travel in front of the spreading elements 24, a roller 28 is arranged, which is designed as a wedge ring roller and is set up to reconsolidate the previously worked arable soil.
  • Depth guide rollers 30 are arranged behind the dispensing elements 24 in the direction of travel, a depth guide roller 30 being assigned to each dispensing element 24. The placement depth of the granular material to be distributed can be adjusted by means of the depth guide rollers 30.
  • harrow 32 In the direction of travel behind the depth guide rollers 30 also arranged harrow 32, which are set up to cover the deposited granular material with an adjustable intensity with loose earth.
  • the illustrated harrow 32 is designed in a tine design, but alternatively roller harrow can also be used.
  • the agricultural pneumatic distribution machine 10 has two track markers 34a, 34b, each of which is set up to produce a marking on the field soil.
  • the markings show the adjacent lane.
  • the Fig. 2 and the Fig. 3 show the distributor head 22 in the Fig. 1 Distribution machine 10 shown, wherein the outlet openings 36a, 36l of the distributor head 22 are each connected to a feedback device 46a-46l.
  • the return devices 46a-46l each comprise a delivery path which pneumatically connect the distributor head 22 to the delivery lines and the delivery elements. Furthermore, the return devices 46a-46l each include a return path, which pneumatically connect the distributor head 22 to return lines 38a-38l and the delivery line 20.
  • the discharge paths and the return paths that is to say also the discharge lines and return lines 38a-38l, are via switching elements 60 (see Fig. 4 ) can be blocked and released in the return devices 46a-46l.
  • each return line 38a-38l open into a collecting element 40a, 40b, the collecting elements 40a, 40b each being connected to the delivery line 20 via a collecting line 42a, 42b.
  • the delivery line 20 has a nozzle-like constriction 48.
  • the collecting lines 42a, 42b open directly above the nozzle-like constriction 48 into the delivery line 20.
  • the nozzle-like constriction 48 prevents material from entering the return lines 38a-38l via the collecting lines 42a, 42b and the collecting elements 40a, 40b as they rise in the delivery line 20.
  • the granular material to be distributed can be fed to the discharge elements via the discharge paths and the discharge lines 44a-44l.
  • the granular material to be distributed can be returned to the conveyor line 20.
  • a feed area includes an end area of the feed line 20, the manifold 22, the return paths and the return lines 38a-38l, wherein the returned material can circulate within the feed area.
  • the discharge lines 44a-44l and return lines 38a-38l can be specifically blocked and released and the metering element 16 can be controlled, the control being carried out in such a way that a determined necessary total amount of the material to be discharged circulates in the return area at all times and at least when released a previously blocked delivery line is supplied with a necessary portion of the corresponding delivery line without delay.
  • the Fig. 4 shows an example of a feedback device 46, wherein the feedback devices 46a-46l of the in the 1 to 3 Distributor 10 shown, for example, according to the in Fig. 4 feedback device 46 can be formed.
  • the return path 76 of the return device 46 has a branch which is connected to a bypass line 50.
  • the bypass line 50 is designed such that material that has entered the bypass line 50 via the return path 76 is at least partially fed back to the return path 76.
  • the bypass line 50 opens into the discharge path 74 of the return device 46.
  • the return path 76 is followed by a return line 38 which is connected to the delivery line (not shown).
  • a discharge line 44 connects to the discharge path 74 and is connected to a discharge element (not shown).
  • the return path 76 has a nozzle-like constriction 62, which prevents material from entering the bypass line 50.
  • the nozzle-like constriction 62 creates a suction effect, so that material is returned from the return path 76 into the delivery line.
  • an increased Flow velocity in the conveying line 20 is reached, which accelerates the conveyed and the returned material in the direction of the distributor head 22.
  • a switch 58 with a switchover element 60 is arranged inside the return device 46, by means of which the delivery path 74 and thus the delivery line 44 can be blocked, so that the entry of an air-material mixture into the delivery line 44 is prevented.
  • the switching element 60 can be moved by means of an actuatable actuating element 64 between a dispensing position releasing the dispensing line 44 and a return position blocking the dispensing line 44.
  • the actuating element 64 comprises a bistable rotary magnet which is set up to cause the switching element 60 to rotate in the direction of rotation D in order to move the switching element 60 between the deployed position and the return position.
  • the switching element 60 When a discharge line 44 is blocked by the switching element 60, the air-material mixture circulates in a supply area which comprises an end area of the delivery line, the return path 76, the return line 38 and the distributor head. In its deployment position that releases the delivery line 44, the switching element 60 also blocks the return path 76.
  • the actuating element 64 is controlled automatically via the control system 66.
  • the actuation of the actuating element 64 which brings the switching element 60, is additionally based individually on the duration of delivery between the distributor head 22 and the application element 24 and is carried out in such a way that the necessary partial quantity is available at any time on the distributor head 22 and / or on the corresponding application element 24 without delay.
  • the air-material mixture flowing into the bypass line 50 is directed in the direction of a material deflection section 54, which is arranged in the direct connection path between the return path 76 and the discharge path 74 within the bypass line 50 and is designed as a web is arranged in the direct flow path to the discharge path 74 and causes a deflection of the air-material mixture.
  • An air deflection section 55 which includes a tear-off edge 56, adjoins the material deflection section 54. The separation edge 56 causes a stall, so that part of the air of the air-material mixture is deflected in the direction of the discharge path 74.
  • the remaining air of the air-material mixture and the material of the air-material mixture are again led out of the bypass line 50 and fed to the delivery line.
  • the control system 66 is also set up to control the metering device of the associated distribution machine, wherein the control system 66 is set up to set the metering device based on the advance speed of the distributor, a conveying time of the material to be distributed from the metering device to the distributor head and a conveying time of the material to be distributed from the distributor head to the dispensing elements, to be controlled in such a way that at any time the total amount of material to be dispensed currently required is present at the distributor head.
  • control system 66 comprises a storage unit 68, a detection device 70 and an evaluation unit 72.
  • the evaluation unit 72 is set up to apply application parameters on the basis of data stored in the storage unit 68 or on the basis of data which are recorded by the detection device 70 to determine which one is currently necessary Total amount of the material to be distributed, a conveying time of the material to be distributed from the metering device to the distributor head and a conveying time of the material to be distributed from the distributor head to the dispensing elements.
  • the control system 66 controls the metering element 16 in such a way that the amount of material to be distributed fed into the conveying line corresponds to the total amount of material to be distributed at the distribution head 22, the total amount of material to be distributed at the distribution head 22 corresponding to the total amount required material to be distributed, which is required if none of the delivery lines 44, 44a-44l is blocked, preferably behaves in the same way as the number of non-blocked delivery lines 44, 44a-44l with respect to the total number of all delivery lines 44, 44a-44l.

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  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Nozzles (AREA)
  • Fertilizing (AREA)

Claims (15)

  1. Machine agricole distributrice pneumatique (10) servant à distribuer au moins une matière en grains à distribuer, de préférence des semences et/ou un engrais, comportant
    - au moins une tête distributrice (22), laquelle est reliée à un organe de dosage (16) par le biais d'une conduite de transport (20), dans laquelle la tête distributrice (22) comprend plusieurs ouvertures de sortie (36a, 361), et
    - plusieurs dispositifs de recirculation (46, 46a-461), lesquels sont disposés respectivement entre une ouverture de sortie (36a, 361) de ladite au moins une tête distributrice (22) et une conduite d'épandage (44) reliée à au moins un élément d'épandage (24),
    dans laquelle un moyen d'aiguillage (58) doté d'un élément de commutation (60) est respectivement disposé dans les dispositifs de recirculation (46, 46a-461), lequel élément de commutation peut être déplacé entre une position d'épandage et une position de recirculation, dans lequel le moyen d'aiguillage (58) achemine un mélange d'air et de matière à une voie de recirculation (76) du dispositif de recirculation (46, 46a-461) respectif dans la position de recirculation de l'élément de commutation (60), laquelle voie de recirculation est reliée à la conduite de transport (20) et comprend une bifurcation au niveau de laquelle la voie de recirculation (76) est reliée, par le biais d'une conduite de dérivation (50), à une voie d'épandage (74) reliée à une conduite d'épandage (44) ;
    caractérisée en ce que la conduite de dérivation (50) est réalisée de telle sorte que la matière parvenue dans la conduite de dérivation (50) par le biais de la voie de recirculation (76) est acheminée au moins partiellement à nouveau à la voie de recirculation (76), la conduite de dérivation (50) comprenant une partie de déviation de matière (54), laquelle est conçue pour dévier en direction de la voie de recirculation (76) la matière parvenue dans la conduite de dérivation (50) par le biais de la voie de recirculation (76).
  2. Machine distributrice (10) selon la revendication 1,
    caractérisée en ce que la partie de déviation de matière (54) présente une flexion ou une courbure, laquelle absorbe par friction l'énergie cinétique de la matière, la partie de déviation de matière (54) étant de préférence conçue pour provoquer une déviation de 150 à 210° de la matière parvenue dans la conduite de dérivation (50) par le biais de la voie de recirculation (76).
  3. Machine distributrice (10) selon la revendication 1 ou 2,
    caractérisée en ce qu'un élément de guidage (52) est disposé à l'intérieur de la conduite de dérivation (50), lequel est conçu pour influencer l'écoulement à l'intérieur de la conduite de dérivation (50).
  4. Machine distributrice (10) selon la revendication 3,
    caractérisée en ce que l'élément de guidage (52) divise une région de la conduite de dérivation (50) en une partie d'afflux (76) dans laquelle le mélange d'air et de matière afflue à partir de la voie de recirculation (76) et une partie de sortie, à partir de laquelle un mélange d'air et de matière retourne dans la voie de recirculation (76).
  5. Machine distributrice (10) selon l'une des revendications précédentes,
    caractérisée en ce que la conduite de dérivation (50) comprend une partie de déviation d'air (55), laquelle est conçue pour dévier en direction de la voie d'épandage (74) l'air parvenu dans la conduite de dérivation (50) par le biais de la voie de recirculation (76).
  6. Machine distributrice (10) selon la revendication 5,
    caractérisée en ce qu'une arête de décollement d'écoulement (56) se trouve au niveau de la partie de déviation d'air (55), arête niveau de laquelle l'air est guidé dans la voie d'épandage (74) en raison d'une contrepression plus faible.
  7. Machine distributrice (10) selon l'une des revendications précédentes,
    caractérisée en ce que la voie de recirculation (76) comprend un étranglement (62) de type buse et la bifurcation de la voie de recirculation (76) est disposée de préférence immédiatement avant l'étranglement (62) de type buse dans le sens de transport.
  8. Machine distributrice (10) selon l'une des revendications précédentes,
    caractérisée en ce qu'une région d'extrémité de la conduite de transport (20) débouche dans la tête distributrice (22) et/ou la conduite de transport (20) comprend un étranglement (48) de type buse dans la région d'extrémité.
  9. Machine distributrice (10) selon l'une des revendications précédentes,
    caractérisée en ce que chaque voie de recirculation (76) est reliée à la conduite de transport (20) par le biais d'une conduite de recirculation (38, 38a-381).
  10. Machine distributrice (10) selon la revendication 9,
    caractérisée en ce que respectivement plusieurs conduites de recirculation (38, 38a-381) débouchent dans un élément collecteur (40a, 40b) et les éléments collecteurs (40a, 40b) sont reliés à la conduite de transport (20).
  11. Machine distributrice (10) selon l'une des revendications précédentes,
    caractérisée en ce que plusieurs conduites de recirculation (38, 38a-381) ou conduites collectrices (42a, 42b) débouchent dans la conduite de transport (20) derrière l'étranglement (48) de type buse dans le sens de transport.
  12. Machine distributrice (10) selon la revendication 11,
    caractérisée en ce qu'une région d'extrémité de la conduite de transport (20) débouche dans la tête distributrice (22), la conduite de transport (20) comprend un étranglement (48) de type buse dans la région d'extrémité et l'étranglement (48) de type buse de la conduite de transport (20) est conçu pour, par un effet d'aspiration, renvoyer la matière provenant des conduites de recirculation (38, 38a-381) ou des conduites collectrices (42a, 42b) dans la conduite de transport (20).
  13. Machine distributrice (10) selon l'une des revendications précédentes,
    caractérisée en ce que la paroi de la conduite de transport (20) est réalisée de manière ondulée au moins dans certaines parties.
  14. Machine distributrice (10) selon l'une des revendications précédentes,
    caractérisée par un système de commande (66), lequel comporte une unité mémoire (68), un dispositif de détection (70) et/ou une unité d'évaluation (72), l'unité d'évaluation (72) déterminant, sur la base de données enregistrées dans l'unité mémoire (68) et/ou détectées par le dispositif de détection (70), des paramètres d'épandage et, au moyen du système de commande (66), sur la base des paramètres d'épandage, des moyens d'actionnement pouvant être commandés, lesquels déplacent les éléments de commutation (60) individuellement entre leur position d'épandage et leur position de recirculation.
  15. Machine distributrice (10) selon au moins l'une des revendications précédentes,
    caractérisée en ce que la matière recirculée peut circuler à l'intérieur d'une région de recirculation comportant la région d'extrémité de la conduite de transport (20), la tête distributrice (22), les voies de recirculation (76) et les conduites de recirculation (38, 38a-381).
EP18401047.8A 2017-06-20 2018-05-17 Machine d'épandage pneumatique agricole Active EP3417688B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017113487.5A DE102017113487A1 (de) 2017-06-20 2017-06-20 Landwirtschaftliche pneumatische Verteilmaschine

Publications (2)

Publication Number Publication Date
EP3417688A1 EP3417688A1 (fr) 2018-12-26
EP3417688B1 true EP3417688B1 (fr) 2020-03-18

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EP18401047.8A Active EP3417688B1 (fr) 2017-06-20 2018-05-17 Machine d'épandage pneumatique agricole

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EP (1) EP3417688B1 (fr)
DE (1) DE102017113487A1 (fr)
HU (1) HUE049712T2 (fr)

Cited By (1)

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